Gas-generator.



T. H. ARMSTRONG.

GAS GENERATOR.

APPLICATION FILED JULY 11, 1912. I I I 1,049,034, Patented Dec. 31,1912.

2 SHEETS-SHEET l.

1 COLUMBIA PLANOGRAPH CO-JWASHINGTON, Dv c.

T.. HJARMSTRONG". GAS GENERATOR.

APPLIUATION FILED JULY 11, 1912. 1,049,034. Patented Dec.31 ,1912..

2 SHEETS-SHEET Z.

l l/hnesses COLUMBIA PLANULERAPH c0., WASHINGTON. u. c.

UNITED STATES PATENT OFFTfiE.

THOMAS H. ARMSTRONG, OF CHICAGO, ILLINOIS, ASSIGNOR T0 SOLOMON PEARLMAN,OF CHICAGO, ILLINOIS.

GAS-GENERATOR.

T0 (122 who m it may concern:

Be it known that I, THOMAS H. ARM- s'rnoxc, a citizen of the UnitedStates, and aresident of the city of Chicago, county of Cook, and Stateof Illinois, have invented certain new and useful Improvements inGasGenerators, of which the following is a specification.

My invention relates to gas generating apparatus and more specificallyto that class thereof designed for use particularly in the generation ofgas for producing a very hot flame.

The object of my invention is the production of a gas generator of thecharacter mentioned which will be durable and economical inconstruction, which may be readily and easily operated and which will beefficient in operation.

Other objects will appear hereinafter.

Vith these objects in view, my invention consists in the combinationsand arrangements of parts hereinafter described and claimed.

My invention will be best understood by reference to the accompanyingdrawing forming a part of this specification, and in which Figure 1 is aside elevation of a gas generating apparatus embodying my invention,Fig. 2 is a central vertical section of the oxygen generator included inthe construction, Fig. 3 is an enlarged sectional side elevation of thegas outlet pipe shown in Fig. 2, and Fig. 1 is a top plan view of theconstruction shown in Fig. 3.

The preferred form of construction as illustrated in the drawingscomprises a cylindrical vessel 1 which is open at its upper end.Arranged within the vessel 1 at the lower end thereof is a verticallymovable vessel 2 which is inverted, the lower end of said vessel beingopen. Leading from the upper end of vessel 2 are pipes 3 and 4:, saidpipes being coaxial, with pipe arranged within pipe 3 and so that anannular passage will be formed in pipe 3 surrounding pipe 1.Communication between the interior of pipe 3 and the upper end portionof vessel 2 is established through diametric openings 5 provided in saidpipe. The lower end of pipe 4 is open so that in use, a portion of thegas passing into the annular passage formed in pipe 3 will passSpecification of Letters Patent.

AppIication filed July 11, 1912.

Patented Dec. 31,1912.

Serial No. 708,772.

into pipe 4 through the open lower end thereof.

Arranged within the vessel 2 at the upper end thereof is a foraminatedcontainer 6 clearly shown in Fig. 2. The container 6 is formed with aco-axial tubular portion 8 for the accommodation of the lower end ofpipe 3, the upper end of the tubular portion 8 being flared as shown inorder to facilitate insertion of pipe 3 thereinto. lVith thisarrangement it will be seen that container 6 is releasably secured inposition permitting of said container being readily detached whendesiredfor introducing the chemical thereinto or for replenishing thesupply in said container.

Connected with the threaded upper ends of pipes 3 and 4: is a fitting 9.Formed in said fitting is a passage 10 which communicates with theadjacent end of pipe 4, the annular passage through pipe 3 communicatingthrough port 11 with a passage 12 provided in said fitting. The passages10 and 12 are governed by manually adjustable needle valves 13 and 14respectively, the passages 10 and 12 terminate at their outer ends innipples 15 and 16 respectively which are connected with flexible tubesor pipes 17 and 18 respectively, said pipes 17 and 18 leading to aburner 19 which may be of any ordinary or preferred design.

Interposed in the pipe 17 is a carbureter 20 which is releasablysupported upon the vessel 1 by means of a hook 20 which is provided atthe upper end of said carbureter and which releasably engages over theupper edge of said vessel. The carburete-r 20, when the device is inoperation, is adapted to contain a liquid chemical such as ether foreffecting the carburation of the oxygen gas passing through the pipe 17.Valves 21 are provided for governing the flow of gas to and from saidcarbureter. Also interposed in the pipe 17 is a safety device 22 ofconventional construction for arresting sparks, preventing the passagethereof rearwardly in pipe 17 to the car bureter.

In the operation of the apparatus, the solid chemical is first suppliedto the container (3. The latter is then secured in position in the upperend of vessel 2 which is then arranged in the vessel 1 as clearly shownin Fig. 2. l l ater is then introduced into vessel 1, the water thusintroduced immersing the vessel 2 and flowing upwardly through the openlower end of said vessel into the interior of the latter into contactwith the chemical carried in container 6. The oxygen gas which isliberated in the vessel 2 will rise in the latter and accumulate in theupper end thereof passing from the latter through the openings 5 intopipes 3 and l, The gas passing through pipe 3 will be directed to thecarbureter 20 whence the same will pass to the burner 19, the gaspassing through pipe 3 being conducted directly to the burner formixture with the carbureted gas passing through pipe 17 to support anoxy-hydrogen flame at the burner. A pencil of lime is provided at theburner against which the flame impinges causing said pencil to be heatedto icandescence as will be understood by those skilled in the art. Inthe operation of the device, heat accompanies the eneration of oxygen.in the vessel 2, the oxygen liberated being comparatively hot. Byarranging the pipe 1- within the pipe 3, the gas passing through saidpipe will be maintained in its heated condition by reason of theprotection afforded by the heat of pipe 3 and the gas passage whichimmediately surrounds said pipe 4:.

Since the evaporation of ether or other suitable chemical, in thecarburetor greatly reduces the temperature therein, itis desired todeliver the gas from pipe l in its heated condition to the carbureter toprevent lowering the temperature therein beyond a point at whichcarburation is impaired.

In the operation of the device the ac cumulation of in the upper end ofvessel 2 will result in a pressure being formed therein which causessaid vessel to be elevated. Such elevation of said vessel is limited bymeans of a transversely extending pin 23 provided in the upper end ofvessel 2 which is adapted to contact with the upper side of fitting 9, athumb nut 24 being pr vided threaded upon one end of pin 23 to lock saidpin in position and prevent accidental displacement thereof. Upwardmovement of the vessel 2 being limited, the excess generation of gas inthe vessel 2, after the latter has reached its upper ter minal ofmovement, will cause the water contained in the lower end of said vesselto be forced downwardly around the lower end of said vessel and upwardlyin vessel 1. Thus the water contained in vessel 1 will serve as a meansof automatically governing the pressure in the vessel 2, resulting inuniform pressure being maintained which, as will be understood, is ofmaterial advantage in the production of a non-flickering flame at theburner.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention.

1', therefore, do not wish to be limited to the exact details ofconstruction set forth, but desire to avail myself of such variationsand modifications as come within the scope of the appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. A gas generator comprising a vessel; a second vessel arranged withinsaid first vessel and having its lower end open; a foraminated containermounted .within said second vessel; and two co-aXial gas outlet passagesleading from said second vessel, substantially as described.

2. A. gas generator comprising a vessel; a second vessel arranged withinsaid first vessel and having its lower end open; a foraminated containermounted within said second vessel; and two outlet pipes arranged onewithin the other leading from said sec ond vessel, substantially asdescribed.

8. In a gas generator, the combination of a vessel having a gas chambertherein; and two gas outlet pipes arranged one within the other leadingfrom said gas chamber, substantially as described.

a. In a gas generator, the combination of a vessel having a gas chambertherein; two gas outlet pipes arranged one within the other leading fromsaid gas chamber; and valves governing the flow through said gas outletpipes, substantially as described.

A gas generator comprising a vessel; a second vertically movable vesselarranged within said first vessel at the lower end thereof, the lowerend of said second vessel being open; co-a-Xial gas outlet pipes leadingfrom the upper end of said second vessel; and a foraminated containermounted within said second vessel and supported in the upper end of thelatter by one of said gas outlet pipes, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THOMAS H. ARMSTRONG. lVitnesses A. A. OLSON, JosnUA R. H. Po'rrs.

(topics of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. C.

